IF Power KX series thyristor frequency induction heating device using KGPS series, is the use of three-phase thyristor frequency AC power is converted into hundreds or thousands of HZ single-phase AC power. Has easy to control, high efficiency, reliable operation, low labor intensity, the device uses an all-digital control circuit, line load adaptable, reloadable start, application and cast steel, alloy steel, stainless steel smelting, vacuum smelting, heating and bending of steel forging, extrusion, preheat the workpiece surface hardening of steel, annealing heat treatment, welding metal parts, powder alloys, pipeline corrosion.